María tiene en su freezer varios paquetes de 4 hamburguesas: 5 de pollo rellenas,3 de pollo simple y 4 de carne. ¿Cuántas hamburguesas hay en total?

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

the square root of 16 is 4.

4*4 = 16